scholarly journals Multifunctional Carbon Nanodots: Enhanced Near‐Infrared Photosensitizing, Photothermal Activity, and Body Clearance

Small Science ◽  
2021 ◽  
pp. 2100082
Author(s):  
Ding-Kun Ji ◽  
Hayet Dali ◽  
Shi Guo ◽  
Sowmya Malaganahally ◽  
Julien Vollaire ◽  
...  
Keyword(s):  
Near Infrared ◽  
Carbon Nanodots ◽  
Body Clearance

scholarly journals Efficient Photoacoustic Imaging With Biomimetic Mesoporous Silica-Based Nanoparticles

2021 ◽  
Vol 9 ◽  
Author(s):  
Chuangjia Huang ◽  
Xiaoling Guan ◽  
Hui Lin ◽  
Lu Liang ◽  
Yingling Miao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Near Infrared ◽  
Ex Vivo ◽  
Photoacoustic Imaging ◽  
Mesoporous Silica Nanoparticles ◽  
Good Biocompatibility ◽  
Targeting Ability ◽  
Body Clearance

Indocyanine green (ICG), a near-infrared (NIR) fluorescent dye approved by the Food and Drug Administration (FDA), has been extensively used as a photoacoustic (PA) probe for PA imaging. However, its practical application is limited by poor photostability in water, rapid body clearance, and non-specificity. Herein, we fabricated a novel biomimetic nanoprobe by coating ICG-loaded mesoporous silica nanoparticles with the cancer cell membrane (namely, CMI) for PA imaging. This probe exhibited good dispersion, large loading efficiency, good biocompatibility, and homologous targeting ability to Hela cells in vitro. Furthermore, the in vivo and ex vivo PA imaging on Hela tumor-bearing nude mice demonstrated that CMI could accumulate in tumor tissue and display a superior PA imaging efficacy compared with free ICG. All these results demonstrated that CMI might be a promising contrast agent for PA imaging of cervical carcinoma.

scholarly journals Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion

2016 ◽  
Vol 5 (7) ◽  
pp. e16120-e16120 ◽  
Author(s):  
Di Li ◽  
Dong Han ◽  
Song-Nan Qu ◽  
Lei Liu ◽  
Peng-Tao Jing ◽  
...  
Keyword(s):  
Absorption Band ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Carbon Nanodots ◽  
Photothermal Conversion ◽  
Infrared Absorption Band

scholarly journals Efficient Red/Near‐Infrared‐Emissive Carbon Nanodots with Multiphoton Excited Upconversion Fluorescence

2019 ◽  
Vol 6 (17) ◽  
pp. 1900766 ◽  
Author(s):  
Kai‐Kai Liu ◽  
Shi‐Yu Song ◽  
Lai‐Zhi Sui ◽  
Si‐Xuan Wu ◽  
Peng‐Tao Jing ◽  
...  
Keyword(s):  
Near Infrared ◽  
Carbon Nanodots ◽  
Upconversion Fluorescence

Feroxyhyte nanoflakes coupled to up-converting carbon nanodots: a highly active, magnetically recoverable, Fenton-like photocatalyst in the visible-NIR range

2015 ◽  
Vol 51 (93) ◽  
pp. 16625-16628 ◽  
Author(s):  
M. C. Ortega-Liebana ◽  
J. L. Hueso ◽  
A. Larrea ◽  
V. Sebastian ◽  
J. Santamaria
Keyword(s):  
Near Infrared ◽  
Carbon Nanodots ◽  
Traffic Lights ◽  
Highly Active

Magnetic traffic-lights for photocatalysis: a novel nanohybrid combining feroxyhyte nanoflakes and upconverting carbon nanolights extends the activity range towards the near-infrared using inexpensive LED illumination.

Controllable self-assembly of a novel Bi2MoO6-based hybrid photocatalyst: excellent photocatalytic activity under UV, visible and near-infrared irradiation

2016 ◽  
Vol 52 (39) ◽  
pp. 6525-6528 ◽  
Author(s):  
Yuchen Hao ◽  
Xiaoli Dong ◽  
Shangru Zhai ◽  
Xiuying Wang ◽  
Hongchao Ma ◽  
...  
Keyword(s):  
Self Assembly ◽  
Near Infrared ◽  
Carbon Nanodots ◽  
Step Method ◽  
Excellent Photocatalytic Activity ◽  
One Step ◽  
Uv Visible ◽  
Nitrogen Doped Carbon ◽  
Bi Nanoparticles ◽  
Hybrid Photocatalyst

Herein, using a simple one-step method, a Bi2MoO6-based photocatalyst with novel ultrathin nanohollow structure and simultaneous sub-10 nm Bi nanoparticles and sub-1 nm graphitic nitrogen-doped carbon nanodots (NCDs) modification were successfully obtained.

In vivo imaging of tumour bearing near-infrared fluorescence-emitting carbon nanodots derived from tire soot

2013 ◽  
Vol 49 (87) ◽  
pp. 10290 ◽  
Author(s):  
Hae Young Ko ◽  
Young Wook Chang ◽  
Gokul Paramasivam ◽  
Myoung Seok Jeong ◽  
Sujeong Cho ◽  
...  
Keyword(s):  
In Vivo Imaging ◽  
Near Infrared ◽  
Carbon Nanodots ◽  
Near Infrared Fluorescence ◽  
Tumour Bearing

scholarly journals Near‐Infrared Chemiluminescent Carbon Nanodots and Their Application in Reactive Oxygen Species Bioimaging

2020 ◽  
Vol 7 (8) ◽  
pp. 1903525 ◽  
Author(s):  
Cheng‐Long Shen ◽  
Qing Lou ◽  
Jin‐Hao Zang ◽  
Kai‐Kai Liu ◽  
Song‐Nan Qu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Near Infrared ◽  
Reactive Oxygen ◽  
Carbon Nanodots ◽  
Oxygen Species

scholarly journals Radiative and Non-Radiative Decay Pathways in Carbon Nanodots toward Bioimaging and Photodynamic Therapy

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 70
Author(s):  
Yujin Kim ◽  
Yoonsang Park ◽  
Seulgi Han ◽  
Wonchan Park ◽  
Mungu Kim ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Radiative Decay ◽  
Near Infrared ◽  
Energy State ◽  
Carbon Nanodots ◽  
Ros Generation ◽  
Trap States ◽  
Different Types ◽  
Energy States

The origin and classification of energy states, as well as the electronic transitions and energy transfers associated with them, have been recognized as critical factors for understanding the optical properties of carbon nanodots (CNDs). Herein, we report the synthesis of CNDs in an optimized process that allows low-temperature carbonization using ethanolamine as the major precursor and citric acid as an additive. The results obtained herein suggest that the energy states in our CNDs can be classified into four different types based on their chemical origin: carbogenic core states, surface defective states, molecular emissive states, and non-radiative trap states. Each energy state is associated with the occurrence of different types of emissions in the visible to near-infrared (NIR) range and the generation of reactive oxygen species (ROS). The potential pathways of radiative/non-radiative transitions in CNDs have been systematically studied using visible-to-NIR emission spectroscopy and fluorescence decay measurements. Furthermore, the bright photoluminescence and ROS generation of these CNDs render them suitable for in vitro imaging and photodynamic therapy applications. We believe that these new insights into the energy states of CNDs will result in significant improvements in other applications, such as photocatalysis and optoelectronics.

Sign in / Sign up

Export Citation Format

Share Document